Stefani, who is coaching budding country musician Brennley Brown on this season of the singing competition, said Shelton, 40, has really opened her eyes when it comes to the country music genre.

"I've been opened up to this whole new world of music that I didn't even know about, and it's been super fun this time because I have a country artist," the 47-year-old singer told Schillaci on Facebook Live. "Between this whole couple of years getting to know country music, but then looking for songs for this little girl who's, like, 15… I have so much new music in me, and I love that. That's my favorite part about being here."

The GRAMMY winner added that, if it weren't for Shelton, she probably would have never listened to country music, admitting, "I would never have been open to it. I've learned so much about heart, your heart in music, just by listening to country music."

Shelton performed Monday night on The Voice, and Stefani stated that she would absolutely be singing along with his performance.

"I'm so excited for Blake. The song tonight is a great song, and he's an amazing singer," she said, adding that the "Came Here to Forget" crooner can be quite "nonchalant" in his performances. "In the greatest way, like, he's at ease no matter where, whether he's just playing around the house…"